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三角形的三线
Author:
Xiaoting Yuan
Topic:
Triangles
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
球体的体积推导（优化版）
兩組對邊相等和有直角的四邊形
找出對稱軸
球體建築師
Discover Resources
體積公式參考
[S2] a revised version of Jane’s GeoGebra file (modified by the author)
整數乘分數
圆柱截方
转动中的杠杆
Discover Topics
Correlation
Random Variables
Fractions
Geometric Transformations
Right Triangles